Improvement in windmills



WIND-MILL. No.1761671. Patented AprilZB, 1876.

WITNESS S v I I I I Q INVENTOR v v ATTORNEYS WHERE, PHDTD-UTROGRAFHER, WASHINGTONv D. C

" hereinafter explained.

GEORGE ,A. MYERS, or sc o'oLo AFr, MICHIGAN.

nvreR-qyE- viEN T m wmomurs.

Specification forming part of Letters Patent No. l 76,67 1, dated April 25, 1876; application filed October9,1875.- r

, To all whom it may concern.-

Be it known that I, GEORGE A. MYERS, of

.Schoolcraft, in the county of Kalamazoo and a State of Michigam-have invented a new and valuable Improvement in Windmills; andgl part of this specification, and to the letters and figures of reference marked thereon. V Figure 10f the drawings is a representation of a side view of my improvement'in windmills, and Fig: 2'is a sectional view of the same. Fig. 3is a plan view thereof.

Thisinvention has relation to what are denominated self-regnlatin'g windmills; and the a nature of my invention consists in a horizontal shaft, which is free to oscillate init-s bearings upon a turn-table, and which has ap.-'

plied to oneend a rudder-blade and to the other end a fan, in combination with a spring,

or its equivalent, which will,'in a light breeze, .hold the said rudder-blade edge to the wind,

and allow the wheel to present itself face to the wind, as will be hereinafter explained.

The invention further consists in'an'expansible fan on the rudder-vane shaft, for a purpose hereinafter explained; also, in an elastic cushion for checking the rudder-vane shaft at proper points in its oscillation, as will be In the annexed drawings, A designates the staff or tower of the windmill, which is-capped by a bracket, a, through which the vertical shaft B of the mill passes. The lower end of this shaftis'supported upon a bracket, (1/,- which is secured on one side of the stafi A below the bracket a. The shaft B receives a through it a working-rod, O, the upper end of which has a horizontally-slotted head, b, formedon it, in the slot of which plays a wrist-pin, c, fixed to a disk, 0, on a horizontal shaft, D. The shaft Drums in a journalbox, 01, which is formed on a turn-table, .E, to which the shaft B isrigidly secured. Shaft D has secured to its outer end a wind-wheel,

F, of any suitable construction. G designates a horizontal cross-head, having bearings ff, and secured to the turn-table E. This crosshead G affords a bearin g for an oscillating shaft,

J, which is at right angles to the shaft D, and

which has a rudder vane or blade, K, secured on one end, and a fan, L, secu'red on the other end. Thefan L is made of two sections, one of whichis rigidly secured to the shaft J, and the otberis' pivoted to the rigid section, and

can be adjusted to increase or diminish the superficial area of the fan at pleasure. This fan is set obliquely to the shaft J, so that the win-d will act on it in all directions of the wheel F. S designates a spring, which is coiled around the shaft J, one end of which is coiled around this shaft, and the other end is secured to the cross-head G. The recoil tendencyof spring S is' to keep the vane K edge to the wind, as shown in Fig. 1, in which position of the vane the wheel F will be held face to the wind. Should the force of the wind increase very much, it will operate on the fan L and turn the vane K, so as to brin g it under the influence of the wind. Under these conditions the wheel F will be caused to edge to the wind more or less, according to the force thereof. The operation of the Wheel can be made more sensitive by expanding the twosections composing the fan. L. When the vane K is edge to the wind it will be stopped in this position bymeans of an arm, k, abutting against an elastic cushion, r, and when the vane is face to the wind an arm, is, will abut against the same cushion r. This 'elastic cushion will prevent injurious shocks. A

rope or chain, t, is wound around the vaneshaftJ and carried down in a groove made in one side of the working-rod O, and designcd for enabling a person to adjust the vane'K about its longitudinal axis, and hold it at any desired angle. By means of this rope or chain t the attendant can, at pleasure,

keep the wheel F edge to the wind, whether" the latter be light orstrong. N designates a .hood or cover which incloses the main working-parts of the mill, and protects them from rain and snow.

What I claim-as new, and desire to secure by. Letters Patent,is

1. The oscillating shaft J, arranged in a plane parallel to the .face of the wheel F, and

having at its outer end the vane K, and'at its inner end the expansible fan L, substantially as and for the purpose set forth.

2. The arms k k and cushion 1', combined In testimony that I claim the above I have with the rudder-woe shaft; J, substantially as hereunto subscribed my name in the presence described. of two Witnesses.

3. The cross-head Gr, secured. on turn-table l E, at right, angles to the wheel-shaft D, in 1 GEORGE A. MYERS. combination with the oscillating shaft J {can Tying the vane K and fan L, and with the Witnesses:

spring S, cushion 7', andchcclca-rms k k, sub- C. G. DYGKMAN,

stantially as described. A WM. L. COLE. 

